This genuine replacement part is a 9 x 2 inch MTD wheel complete assembly. This part is for use with walk-behind self-propelled lawn mowers. This complete wheel features link tread to provide better grip. This wheel assembly is the rear wheel, and attaches to the bottom of the mower to allow for good grip and smooth rolling, even on uneven ground. Over time, the wheels on a lawn mower can wear out or become damaged. This can reduce traction or affect the alignment of the mower. Replacing the wheel assembly is simple, but be sure to shut off the engine of the mower. Allow the engine to become cool before installing this part. Disconnect the spark plug to prevent the mower from accidentally starting. This OEM replacement part is made of high quality plastic, and is sourced directly from the manufacturer. This part is sold individually. This part is compatible with a variety of Craftsman, Cub Cadet, Yard Machines and MTD lawn mowers.Please note: original part numbers 734-1836, 734-1837, 734-1838, 734-1981, 734-1850 are now obsolete, and manufacturer has replaced the original part numbers with this part.